Improvement in sliding screens for windows



JOSHUA'LFIELD."

Improvement in Sliding-Screens for Windows.

NO'.4126,629! Patented Ma 14,1872.

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UNITED STATES PATENT OFFICE.

IMPROVEMENT IN SLIDING SCREENS FOR WINDQWS.

Specification forming part of Letters Patent No. 126,629, dated May 14, 1872.

I, JOSHUA L. FIELD, of Philadelphia, Pennsylvania, have invented certain Improvements in Sliding Frames, of which the following is a specification:

Nature and Objects of the Invention.

screens) are drawn out the metal guides run in the grooves, and the frames are supported, thus extended, by the metal guides resting in the grooves.

Figure 1 represents the two frames drawn out and adjusted. Figs. 2 and 3 represent lateral views of the manner of constructing and joining the two frames.

a a represent the metal face of the groove cut in frame A; and b b, the metal guide fastened to frame B, this arrangement being on the inside of the upper and lower side of the frames. Instead of a mere groove cut in the wood-work of the frame and faced with metal, the groove may be lined with metal, as in Fig. 2. It-is not material to the working of the sliding frames to so line these grooves, butmay serve to strengthen them.

By means of my invention a straight and uniform surface is secured along the top and bottom, (Fig. 1, s 8.) When my frame is placed in the window and the sash let down upon it, there is no crack left for the insects to creep through.

Claim.

What I claim as my invention and improvement in window-slides is- The construction of the metallic guides a a and b b in combination with the frames, as shown, for the purpose described.

- JOSHUA L. FIELD.

Witnesses Rom. H. HrNcKLEY, J r., T. MARSHALL. 

